Marquis Who's Who Honors Joannis "John" Argyriou for Expertise in Finance and Investments
Press Release January 20, 2025
Joannis "John" Argyriou is lauded for his work with Bellerophon Investment Management Ltd. and OneCycle Group
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WHIPPANY, NJ, January 20, 2025 /24-7PressRelease/ -- Joannis "John" Argyriou has been selected for inclusion in Marquis Who's Who. As in all Marquis Who's Who biographical volumes, individuals profiled are selected on the basis of current reference value. Factors such as position, noteworthy accomplishments, visibility, and prominence in a field are all taken into account during the selection process.

Mr. Argyriou has established a distinguished career in the financial sector, which has been marked by significant contributions and leadership roles. Since 2002, he has served as the senior managing director of Bellerophon Investment Management Ltd., where he manages money for U.K. insurance companies, operates as a venture capital company focusing on mining projects and oversees the construction of a plant that extracts minerals from ocean water. Mr. Argyriou's tenure with the firm reflects his enduring commitment and expertise in the field.

In addition to his role at Bellerophon, Mr. Argyriou has been the chief investment officer at OneCycle Group since 2016. His responsibilities include overseeing investment strategies and ensuring optimal returns for stakeholders. Based in Bristol, England, OneCycle Group specializes as a nanotechnology research company that produces high-quality nanoparticle material from magnesium extracted from the sea, thus replacing conventionally produced magnesium sources.

Leveraging his former success, Mr. Argyriou spent 2008 to 2015 as the chief operating officer at Curve Capital Ventures Ltd., where he played a pivotal role in operational management and strategic planning. He also garnered success as the head of repo, arbitrage and futures fixed income at Yamaichi International (Europe) Ltd. from 1996 to 1998. Earlier in his career, Mr. Argyriou gained valuable experience in repo trading at Steinhardt Capital Management LLC between 1994 and 1996 after spending over a decade as a sales associate in fixed income at Salomon Brothers Inc. from 1983 to 1994.

Mr. Argyriou pursued an education in the Lubin School of Business at Pace University in New York City, receiving a Bachelor of Applied Science in finance and economics in 1984. He is pursuing a master's degree to further enhance his knowledge and skills.

Mr. Argyriou has been involved in various civic organizations, such as the National Rifle Association and Hiram Mason Lodge in the U.K. He has also been a lobbyist with the U.S. Navy for approximately 40 years, advocating for various causes. Mr. Argyriou previously coached American football in the U.K. for over five years, demonstrating his commitment to community development and youth mentorship.

Throughout his career, Mr. Argyriou has played a significant role in collective efforts that led to impactful policy changes within central banks, an achievement he regards with great pride. His influence in shaping financial policies underscores his expertise and dedication to advancing the industry. Mr. Argyriou remains eager for future opportunities and desires to continue to innovate and create more effective solutions.

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